0000000000323727

AUTHOR

Lucia Cavigli

showing 2 related works from this author

Magneto-optical Investigations of Nanostructured Materials Based on Single Molecule Magnets Monitor Strong Environmental Effects

2007

The determination of the magnetic properties of molecular magnets in environments similar to those used in spintronic devices is fundamental for the development of applications. Single-molecule magnets (SMMs) are molecular cluster systems that display magnetic hysteresis of dynamical origin at low temperature. As they behave like perfectly monodisperse nanomagnets and show clear macroscopic quantum effects in their magnetic properties, they are extremely appealing candidates for the forthcoming generation of molecular devices: they have been proposed as efficient systems for quantum computation, ultra-high-density magnetic recording media, and molecular spintronic systems. These attractive …

Materials scienceMagnetismOPTICAL MODESMN12O12(O2CR)(16)(H2O)(4)GOLD SURFACESRELAXATIONNanotechnologySURFACE PHONONSMN-12 NANOMAGNETSCluster (physics)General Materials ScienceThin filmLangmuir-Blodgett filmsSpintronicsMechanical EngineeringMagnetic hysteresisNanomagnetmagnetic hysteresisAmorphous solidIONIC CRYSTAL SLABMESOPOROUS SILICAMagnetic coreMechanics of MaterialsChemical physicsmagnetismcluster compoundsCLUSTERSQUANTUMIONIC CRYSTAL SLAB; MESOPOROUS SILICA; MN-12 NANOMAGNETS; SURFACE PHONONS; OPTICAL MODES; GOLD SURFACES; QUANTUM; MN12O12(O2CR)(16)(H2O)(4); RELAXATION; CLUSTERSLangmuir-Blodgett films; magnetic hysteresis; magnetism; cluster compounds
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Single photon emission from impurity centers in AlGaAs epilayers on Ge and Si substrates

2012

We show that the epitaxial growth of thin layers of AlGaAs on Ge and Si substrates allows to obtain single photon sources by exploiting the sparse and unintentional contamination with acceptors of the AlGaAs. Very bright and sharp single photoluminescence lines are observed in confocal microscopy. These lines behave very much as single excitons in quantum dots, but their implementation is by far much easier, since it does not require 3D nucleation. The photon antibunching is demonstrated by time resolved Hanbury Brown and Twiss measurements.

Photon antibunchingPhotonMaterials sciencePhotoluminescencePhysics and Astronomy (miscellaneous)Droplet Epitaxybusiness.industryExcitonquantum dotCondensed Matter::Mesoscopic Systems and Quantum Hall EffectGallium arsenideCondensed Matter::Materials Sciencechemistry.chemical_compoundSemiconductorchemistrySingle photon emitterQuantum dotOptoelectronicsGaAbusinessFIS/03 - FISICA DELLA MATERIAMolecular beam epitaxyApplied Physics Letters
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